摘要:
The invention relates to a catalyst which can be applied to a method for converting synthesis gas, said catalyst comprising: a) a support made of a solid solution containing at least one first aluminate element with a mixed spinel structure of formula MxM'(1-X)AI2O4/AI2O3.SiO2, x ranging from 0 to 1 being excluded, or a simple spinel structure of formula MAI2O4/AI2O3 SiO2, wherein the support is calcinated in an at least partially oxidizing atmosphere at a temperature ranging from 850 °C to 900 °C, b) an active phase which is deposited on the support which contains one or several metals of group VIII, selected from amongst cobalt, nickel, ruthenium or iron. The catalyst is used in a fixed bed or in a suspension in a triphasic reactor for the synthesis of hydrocarbons from a CO, H2mixture.
摘要翻译:一种适用于合成气转化的催化剂,特别是ET淤浆法,所述催化剂包括:a)至少含有式M x M'(1-x)Al 2 O 4 / Al 2 O 3 -SiO 2混合尖晶石结构的第一铝酸盐元素的载体, 并且不包括0和1,或者简单的尖晶石结构式为MA1204 / Al2O3.SiO2,所述载体在至少部分氧化的气氛中在850℃和900℃之间的温度下煅烧,和b) 活性相沉积在所述载体上,其含有一种或多种选自钴,镍,钌或铁的VIII族金属。 所述催化剂用于固定床或悬浮在三相反应器中用于从CO,H 2混合物进行烃合成。
摘要:
The invention relates to a method for the preparation of metal nanoparticles having an anisotropic nature, using two different reducing agents which preferably have different reducing powers, on a source of a metal which is selected from columns 8, 9 or 10 of the periodic table of elements.
摘要:
The invention relates to a method of preparing a catalyst, comprising the following steps consisting in: a) preparing a colloidal suspension of oxide of a first metal M1, involving the neutralisation of a basic solution with a mineral acid solution containing the precursor of metal M1; b) bringing the precursor of promoter M2, either directly in the crystallised form thereof or after dissolution in aqueous phase, into contact with the colloidal suspension obtained in step a); c) bringing the colloidal suspension obtained in step b) into contact with the support; and d) drying same at a temperature of between 30 °C and 200 °C under an air flow. The invention also relates to a method for the treatment of an olefinic cut, using the catalyst that has been prepared using said preparation method.
摘要:
The invention concerns a method for selective hydrogenation of diolefin compounds into monoolefin compounds using a catalyst composition comprising at least one salt of transition metal of groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group consisting of liquid salts of general formula Q+A- (wherein Q+ represents a quaternary ammonium and/or a quaternary phosphonium and A- represents any anion capable of forming a liquid salt below 90°C).
摘要:
The invention relates to a method for producing low-sulphur petrol from an initial petrol containing sulphur compounds comprising the following steps: a) the selective hydrogenation of the non-aromatic polyunsaturated compounds present in the initial petrol; b) increasing the molecular weight of the light sulphur products that were initially present in the petrol at the beginning of step b); c) the alkylation of at least part of the sulpur compounds present in the product resulting from step b); d) the fractionation of the petrol resulting from step c) into at least two fractions, one of said fractions being practically free of sulphur compounds and the other containing a larger proportion of sulphur compounds (heavy petrol); e) the catalytic treatment of the heavy petrol to transform the sulphur compounds in conditions that allow the, at least partial, decomposition or hydrogenation of said sulphur compounds.
摘要:
The invention relates to a method for producing low-sulphur petrol comprising at least one sulphur compound transformation step consisting of the alkylation or adsorption of the sulphur compounds and/or in increasing the weight of the light sulphur compounds; at least one step involving treatment in the presence of an acid catalyst; and at least one step consisting in desulphurising at least one part of the petrol. According to the invention, the method can also optionally comprise at least one step involving the selective hydrogenation of diolefins and, optionally, at least one fractionation of the petrol obtained into at least two fractions: light petrol and heavy petrol.
摘要:
The invention relates to a method for producing low-sulphur petrol comprising at least one sulphur compound transformation step consisting of the alkylation or adsorption of the sulphur compounds and/or in increasing the weight of the light sulphur compounds; at least one step involving treatment in the presence of an acid catalyst; and at least one step consisting in desulphurising at least one part of the petrol. According to the invention, the method can also optionally comprise at least one step involving the selective hydrogenation of diolefins and, optionally, at least one fractionation of the petrol obtained into at least two fractions: light petrol and heavy petrol.
摘要:
The invention relates to a method for the preparation of metal nanoparticles having an anisotropic nature, using two different reducing agents which preferably have different reducing powers, on a source of a metal which is selected from columns 8, 9 or 10 of the periodic table of elements.
摘要:
The invention concerns a method for selective hydrogenation of diolefin compounds into monoolefin compounds using a catalyst composition comprising at least one salt of transition metal of groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group consisting of liquid salts of general formula Q A (wherein Q represents a quaternary ammonium and/or a quaternary phosphonium and A represents any anion capable of forming a liquid salt below 90 DEG C).
摘要:
The invention relates to a method for producing petrol having a low sulphur content comprising at least one selective hydrogenation of diolefins, optionally at least one transformation stage, preferably an increase stage, of light sulphur compounds present in petrol, at least one fractioning of the petrol obtained into at least two fractions, light petrol and heavy petrol, then an optional transformation stage, preferably alkylation or adsorption of sulphur compounds and a one-stage desulphurization treatment of at least one part of the heavy fraction.